Portion of a headphone



FIG. 1 is a perspective view of a portion of a headphone showing our new design;

FIG. 2 is a front side view of the headphone shown in FIG. 1;

FIG. 3 is a back side view of the headphone shown in FIG. 1;

FIG. 4 is a right side view of the headphone shown in FIG. 1;

FIG. 5 is a left side view of the headphone shown in FIG. 1;

FIG. 6 is a top view of the headphone shown in FIG. 1; and,

FIG. 7 is a bottom view of the headphone shown in FIG. 1.

The uneven broken line immediately adjacent to the shaded areas represents the bounds of the claimed design. All other broken lines represent the remaining portion of the headphone. The broken lines in FIGS. 1-7 are for environmental purposes only and do not form any part of the claimed design. 

CLAIM The ornamental design for a portion of a headphone, as shown and described. 